Related Clues:

• Give a thumbs down to
• Vote of dissent
• Senatorial vote
• 'Wasn't me,' e.g.
• Aye opponent
• Negative
• Nix, presidentially
• ''That's not true!'' is one
• No relation?
• Viva-voce vote
• Refuse to approve
• Dissent
• Rebuttal
• Governor's turndown
• 'That's a lie!,' e.g.